GB8423586D0 - Diopter adjustable eye piece - Google Patents

Diopter adjustable eye piece

Info

Publication number
GB8423586D0
GB8423586D0 GB848423586A GB8423586A GB8423586D0 GB 8423586 D0 GB8423586 D0 GB 8423586D0 GB 848423586 A GB848423586 A GB 848423586A GB 8423586 A GB8423586 A GB 8423586A GB 8423586 D0 GB8423586 D0 GB 8423586D0
Authority
GB
United Kingdom
Prior art keywords
eye piece
adjustable eye
diopter adjustable
diopter
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB848423586A
Other versions
GB2145538A (en
GB2145538B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of GB8423586D0 publication Critical patent/GB8423586D0/en
Publication of GB2145538A publication Critical patent/GB2145538A/en
Application granted granted Critical
Publication of GB2145538B publication Critical patent/GB2145538B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/001—Eyepieces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Viewfinders (AREA)
GB08423586A 1981-03-13 1984-09-18 Diopter adjustable eye piece for view finders for single-lens-reflex cameras Expired GB2145538B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56036143A JPS57150813A (en) 1981-03-13 1981-03-13 Diopter controllable eyepiece used for finder of single- lens reflex camera or the like

Publications (3)

Publication Number Publication Date
GB8423586D0 true GB8423586D0 (en) 1984-10-24
GB2145538A GB2145538A (en) 1985-03-27
GB2145538B GB2145538B (en) 1985-10-09

Family

ID=12461563

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8205915A Expired GB2095421B (en) 1981-03-13 1982-03-01 Diopter adjustable eye piece for view finders for single-lens-reflex cameras
GB08423586A Expired GB2145538B (en) 1981-03-13 1984-09-18 Diopter adjustable eye piece for view finders for single-lens-reflex cameras

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8205915A Expired GB2095421B (en) 1981-03-13 1982-03-01 Diopter adjustable eye piece for view finders for single-lens-reflex cameras

Country Status (4)

Country Link
US (1) US4509831A (en)
JP (1) JPS57150813A (en)
DE (1) DE3207948A1 (en)
GB (2) GB2095421B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664485A (en) * 1981-05-20 1987-05-12 Canon Kabushiki Kaisha Finder optical system for a camera
US6424468B1 (en) * 2000-09-05 2002-07-23 Nikon Corporation Eyepiece lens

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662443A (en) * 1951-08-27 1953-12-15 W & L E Gurley Erecting eyepiece with variable magnification
GB1010226A (en) * 1961-10-07 1965-11-17 Rollei Werke Franke Heidecke Improvements in or relating to photographic cameras
JPS54126531A (en) * 1978-03-24 1979-10-01 Minolta Camera Co Ltd Diopter adjusting eyepiece lens and finder of single lens reflex camera using this
JPS54126530A (en) * 1978-03-25 1979-10-01 Minolta Camera Co Ltd Diopter adjusting eyepiece lens and finder of single lens reflex camera using this
US4206988A (en) * 1978-04-26 1980-06-10 Minolta Camera Kabushiki Kaisha Viewfinder for single lens reflex cameras
JPS55118011A (en) * 1979-03-05 1980-09-10 Canon Inc Wide visual field eyepiece
JPS5952404B2 (en) * 1979-12-26 1984-12-19 旭光学工業株式会社 eyepiece optical system
JPS5691207A (en) * 1979-12-26 1981-07-24 Fuji Photo Optical Co Ltd Variable magnification lens adapter of endoscope

Also Published As

Publication number Publication date
US4509831A (en) 1985-04-09
GB2095421A (en) 1982-09-29
GB2145538A (en) 1985-03-27
GB2145538B (en) 1985-10-09
JPS57150813A (en) 1982-09-17
GB2095421B (en) 1985-10-09
DE3207948C2 (en) 1987-08-13
DE3207948A1 (en) 1982-09-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960301